Package wrapping machine



Sept. 27, 1938.

P. D. PARSONS PACKAGE WRAPPING MACHINE Filed July 1, 1937 -9Sheets-Sheet l y www sept. 27, 193s.

P. b.' PARSONS PACKAGE WRAPPING- MACHINE.

Filed July l, 1937 9 Sheets-Sheet 2 SeptE 27, 1938. P. D. PARSONSPACKAGE WRAPPING MACHINE Filed July l, 1957 9 Sheets-Sheet-A sept. 27,193s. R .5. PARSONS 2,131,668

PACKAGE WRAPPING MACHINE File@ July 1, 1957 9 sheets-sheet 4 sept. 27,193s. RQPARSONS @2,131,668 PACKAGE wRAlPING MACHINE I Filed July 1,A1937 9 sheets-sheet 5 Sept- 27, :1938. D.. P AsoNs 2314315668',

PACKAGE WRAPPING MACHINE Filed July 1, 1957 sa sheets-sneer '7 .Sept 27,1938. P. D'. PARSONS v l l 2-131538 l PACKAGE WRAPPING MACHINE I FiledJuly v1, 195'? v i 9 sheets-sheet s ll i Sept. 27, 1938.

I ma

P. D. PARsoNs l2,131,668

' PACKAGE WRAPPING MACHINE l 9 Sheets-Sheet 9 Filed July l, 1937Patented Sept. 27,

- UNITED STATESl PATENT 'OFFICEy rationj of Pennsylvania ApplicationJuly 1, 1937, Serial No. 151,539'

'11 Claims.

are to provide novel and improved mechanisms for applying the wrappersheets to the rolls, and for subsequently discharging the rolls from themachine; and the invention resides in the provision of certain novel andimproving details of structure and mechanism hereinafter described .-andillustrated in the attached drawings, in

which:

Figure l is a side elevational View of a machine made in accordance withmy invention;

Fig. 2 is -an end elevational view of the ma-A chine;

Fig. 3 is a fragmentary elevational view in 2o section illustrating theinterrelation of the various working parts of the machine;

Fig. 4 is a plan view ofthe wrapper-feeding mhchanism forming anintegral part of the Iriac ne; Fig. 5 is a fragmentary sectionalview onthe line5-5,Fig.1;

Fig. 6 is a fragmentary view in perspective of the wrapper-applyingelements and the immediately associated gearing; 3o Fig. 7 is afragmentary section-on the line 'I-I, Fig. 6;

Figs. 8 to 11,- inclu'sive, are diagrammatic views 0Nillustrating themode of operation of the wrapper-applying elements shown in Fig. 6; Fig.12 is a fragmentary enlargement illustrata'j" ing details of theroll-stripping or discharging mechanism;

Fig. 13 is a section on the line I3-I3, Fig, 12; Fig. 14 is a side viewof that portion ofthe w mechanism shown in Fig. 12, and

tional views illustrating the mode of operation of the strippingmechanism.

The machine illustrated in the drawings is' es to the machine disclosedin the aforesaid U. Sz Patent No. 2,005,846. u

Referring to Figs. 1 to 3, the machine comprises a suitable base I orframe, at one end of 50 which is mounted a pedestal 2 supporting ahorinal for a rotating spider 4, in each of the arms 5 Aof which isslidably mounted a pin 6. Each of the pins -6 is hollow, see Fig. 3, andis longituV 55 dinally slotted for receptionof a retaining pin .1

" and in Figs.- 8 to 11,inclu'sive,the space between theproximateedges-of the plates 25, 25 is con-- siderably narrower thanthe diameterof the rolls Figs. 15 to 17, inclusive, are fragmentary sec-v sentiallysimilar in type and mode of operationA shown at theleft in Figs. 1 and 3zonen stub Shania. This shaft 3 forms e jeurin the supporting arm whichprevents rotation of the pinv in the arm while permitting axial movementthereof on a line paralleling the axis of the shaft 3. Each of the pins6 has secured in one end thereof a member 8 which carries a roller 9adapted for engagement with a cam I I secured in iixed position upon theshaft 3, and. a spring I2 in the interior of the pin is confined betweenthe member 8 and the retaining pin 'I and exerts pressure tending tourge the pin and the roller 10 9 rearwardly into engagement with thecam. Toward the forward end, each of the pins has a flange I3, thefunction of which will be hereinafter described, and outwardly of thisflange the pin terminates in a rounded end portion I4 having 15-longitudinal radially projecting fins I5, see particularly Fig. 17. Theterminal end portions o f the pins are adapted to support the toiletrolls, as hereinafter described, so that the rolls, as the spider isrotated, are carried in a rcircular path through the wrapper-applyingmechanism hereinafter described. 1

Power from a suitable source (not shown) is applied tothemachine'through a shaft I6, this shaft being coupled at I1 to a shaft I8journaled 25.

in the frame. The latter shaft carries a pinion I3 which meshes with agear 2l secured to the spider 4. 'Ihese shafts and the spider are con-Vtinuously driven in the normal operation of the machine. I

Positioned in he path of the toilet rolls Rias the latter are rrieddownwardly on the rotating spider 4 is a table 22, this table beingsupported in part upon brackets 23 secured to the machine frame. Thetable has a recess 24 v:forming an 35 y opening through which the rollsR. arepermitt ed to pass. At each` side edge of the recess 24- andhinged to thetable 22 is a plate 25, these plates` being normallyresiliently supported in the plane of the table by springs 26. 'As shownin Fig. 4. 40

R,'so that as the roll is carried downwardly through the opening inthetable 22 formed by the recess 24, the platee 2s, 25 ere depressedabout 45 their hinged connection with the table.

f Associated with the table 22 is mechanism d in rug. 4 for feedingwrapping sheets to the ta le 22, one such wrapping sheetrbeing indicatedat 42'I .in Figs. l,

3 and 4. The wrapper-.feedingl mechanism com-l y prises means f orwithdrawing a continuous strip i of the iiexible-wrapping material froma roll-28 of vsaid material supported inthe present in- 55,

.rolls 48, 49.

stance, as shown in Figs. 1 and 3, upon a spindle 30 journaled in theframe of the machine, and for cutting this continuous strip intomeasured lengths according to the required size of the individualwrapping sheet. In the present instance, the strip of material drawnfrom the roll 28 passes first over an idler tensioning roller 29 whichis journaled between arms 3l, 3l depending from a shaft 32 suitablyjournaled in the machine frame. To this shaft 32 is secured an' arm 33which has attached to its outer end a depending counterweight 34. Fromthe tensioning roller 29 the strip passes to an idler roll 35 journaledin the frame, and thence between feed rollers 36 and 31. From the feedrollers 36 and 31 the strip passes through a guide member 38 to a secondfeed roll 39 and between this roll and-a plurality of presser rolls 4I,and from these latter rolls through a second guide 44 to and between athird feed roll 42 and presser rolls 43. Between the sets of feed rolls39, 4I and 42, 43 and between the adjoining ends of the guides 38 and44, the strip is subjected to the action of a vertically reciprocatingcutter 45, this cutter comprising a blade 46 which cooperates with amember 41 over which the strip passes to shear the latter transversely.From the feed rolls 42, 43 the severed sheets pass from the guide 44onto the table 22, and are advanced to the proper position upon thistable overlying the recess 24 by means of two sets of feedl rolls 48,49, the rolls 48 projecting up.- wardly through apertures 50 in thetable 22, as shown in Fig. 44. The wrapping sheet 21 is advanced by theaction of the rollers 48, 49 until the rear or trailing edge of thesheet clears these rollers, at `which time itis in the proper positionabove the `recess 24 to receive the rolls R. in their downwardmovements. 1f the speed of operation is such as to require them, stoplugs 5I may be provided at the outer edges of the hinged plates 25,these lugs acting as positive stopsl preventing further movement of thewrapping sheet after the rear edge of the latter has cleared the Inpassing over the table 22, one of edges of the sheet 21 is provided, asshown in Fig. 4, with a -strip 52 of adhesivei this adhesive beingapplied to the sheet throughthe mediumvof a rotary applicator disk 53which projects at one side through a narrow slot in a receptacle 54containing the adhesive, the disk 53 functioning normally to close thisslot in the wall of the adhesive container to prevent escape of the.adhesive when the machine is idle. 'I'he bottom of the disk 53 engagesthe edge portion of *the wrapper sheet as it passes over the table 22,and being rotated by means hereinafter described transfers the adhesivewithdrawn from the receptacle 54 to the sheet.

As the rolls are passed downwardly through the recess 24 of the table22, Athey carry with them the individual sheets 21, and elements 55, seeFigs. 3 and 8 to 11, inclusive, operating below the table .22 functionin a manner hereinafter described to wrap the respective sheets snuglyabout the indi` vidual rolls, and to seal them by means of the adhesiveapplied as previously described. As this operation is completed and therolls continue their downward movement on the rotating spider 4,mechanism associated with the pins 6 and indicated generally in Fig. 3by the reference numeral 56 functions to strip the lwrapped rolls fromthe pins, the rolls being deposited individually in cradles 51 on anendless conveyer 58 in the lower part of the frame, and being carried bythis conthe side inafter described the mechanisms, by means of which thefunction of the machine is carried out, diifer'from the `mechanisms ofthe prior patent.

By reference to Figs. 6 to 11, inclusive, it will be l noted that as therolls R. are carried downwardly on the arms 5 of the lspider 4 and arebrought into engagement with the sheet 21 supported as previouslydescribed upon the table 22, the hinged plates 25, 25 are depressed, seeparticularly Fig. 9, with the result that the sheet 21 is in effectdrawn around the under side of the cylindrical roll. Below the table andat either side of the path of movement of the roll on the spider 4 is ashaft, 6| and 62 respectively, and each of these shafts near its outerend carries a anged collar 63 and 64. At the front of the collar 63 ofthe shaft 6| and loosely mounted for oscillation upon the projecting endof the shaft is a pair of arms 65 and 66 which project radially from theshaft and normally in diametrically opposite directions, as shown inFigs. 6 and 8. In order that this radial Valignment of the. arms 65 and66 may be obtained,

each of the arms is provided with a hub element, 61 and 68 respectively,which are segmental in form and which overlap each other, as clearlyillustrated in Fig. 6. The normal position of the arms is determined bya pair-of pins 69, 69 which project in the axial' direction from theforward face of the collar 63, and are engaged respectively by, the arms65 and 66, the latter being resiliently held against these pins bysprings 1I, 1I. Each of the arms 65 and 66 is thus permitted to turn onthe shaft 6I away from the 'respective stop pins l in a directionreverse to the indicated direction of rotation of the shaft 6I. A collar12 secured to the extremity of the shaft and engaging the outer faces ofthe hubs 61 and 68 retains these hubs against the outer face of thecollar 63 and against axial movement on the shaft. Each of the arms 65and 66, which are adjustable as to l length, carries at its outer end atransverse bracket'13, and each of these brackets carries va. roller 14.As shown in Fig. 7, the brackets 13 are mounted on the arms to providefor a limited free movement of the brackets from their normal positions,see Fig. 6, around the axes of the arms v to which they are secured.

Similarly loosely mounted on the shaft 62 is a r pair of arms 15 and 16,these arms differing from the arms 65 and 66 in that they are bent at anangle -in the plane in which they are adapted to rotate. The inner endsof the arms 15 and 16 are provided with hub elements 11 and 18corresponding to the elements 61 and 68 previously described. The normalpositions of the arms are determined byv pins 19, 19 and springs 8l,whichv resiliently retain the arms against the pins 19 and in thepositions in whichV they are shown in Fig. 6. It will .be noted that thearms 15 an'd 16 `are identical in form, and that normally the innerradial ends of the arms arel in alignment with each other. A collar 82secured to the extremity of the shaft holds the arms in place, and eachof the arms carries'at its outer end a bracket 83, in which arejournaled rollers 84, 84. As in the case of the brackets 13, thebrackets 83 are mounted on their respective arms for limitedself-adjusting 'movement around lthe axes of the outer end portions ofthe arms. As viewed in Fig. 6, -the shaft 6| is adapted to rotate in aclockwise direction,'and the shaft 62 in the counterclockwise direction,so that the arms move in opposed paths. as indicated.

Again referring to Figs. 8 to 11, and now specifically to Fig. 10, itwill be noted that as the roll R passes downwardly between the depressedhinged plates 25, 25, the wrapping, sheet 21 is engaged on diametricallyopposite sides of the 10 roll by the rollers 14 and 84-of one arm ofeach of the sets associated respectively with the shafts 6| and 62, andthat,v the arms, by reason of their resilient pivotal mounting on theshafts, are permitted to accommodate themselves to the contour of theroll in spite of the fact that the shafts 6I and 62 are in continuousrotation. Thus in Fig. 10, it will b'e 'noted that the arms'65 and15,

which carry the rollers 14 and 84, then in op- 50 which carry the rolls14.

erative engagement with the roll, have been moved back against thetension of their respective springs 1I and 8| from the stop pins 69 and19, and that the springs 1| and 8| thereby function to maintain therollers 14 and 84 in contact with the wrapper. The action of the arms 65and 15 and of the rollers 14 and 84 carried thereby is such that as therolls leave the hinged ,plates 25, 25, these arms and rollers take upthe function of wrapping the sheet 21 around the roll. The relation ofthe arms 65 and 15 is such that the roller 14 on the arm 65, as shown inFigs. A10 and 11turns the one edge of the wrapper sheet 21 under theother so that the edges, Vas shown in Fig. 11, are brought eventually,and at this time under the sle action of the roller 84 on the arm 15,into the fiat overlapped relation shown at the bottom of Fig. 8. Sincethe overlapped edge of the wrapper is that edge which as previouslydescribed has received a coating of' adhesive, the wrapper, aftercontact with the roller 84 iseven- 40 tually broken, see Fig. 9, is heldsecurely in position upon the roll. It will be noted also, as shown inFig. 9, that as the two arms acting as previously described upon the oneroll leave the latter, the

other two arms of the respective sets move into position to engage thewrapper of a succeeding roll then passing downwardly between the hingedplates 25.

Attention is also directed to the ns or-anges 8 5 thrown up at rthebacks of the brackets l13 When as described aboveand as shown in-Fig. 11this roller-tucks the one edge o f the wrapper under the other'oroverlapping edge, there is contact between this overlappingadhesive-coated edge and the outer end ofthe bracket 13. 'I'he fins 85then function to prevent the wiping off of the adhesive upon the bracketand preclude an accumulation of adhesve on this bracket which mighteventually foul the roller.

'6, have connected thereto at their rear ends .toothedgeara 86 and\81respectively, and these gears are interconnected by idler gears 88 and89 suitably journaled on the frame. Meshing .with

` the bottom of the gear 86 is a second idler gear.

meshes with a gear 92 carried 9| which in by a -shaft 93 jcurnaled inthe frame of the machine. Ihis shaft, as shown in Fig. 1, is connectedthrough a clutch 94 with Aa shaft 95. This latter shaft carries at itsouter end a sprocket 96 which is connected by a chain 91 witha secondsprocket -98 secured to'theshaft I8. The shafts 6I and 62 are thusdrivencontinuously, under normal conditions, with the shaft I8, which aspreviously described is operatively connected with the spiderA Theshafts sl and sz, as shown in Figs. 5 and" 4, and the movements of thespider and of the rolls carried thereby are thus synchronized with themovements of the wrapper-applying arms 65 and 15.

When the rolls R are placed on the ends of the pins 6 as previouslydescribed, these pins under actuation of the cam I| have been moved tothe advanced vor extended positions, as shown at the top of Fig. 1,whereinthe rolls are in alignment with the wrapper positioned on thetable 2.2 and with the wrapper-applying rollers 14 and 84. This advancedposition of the pins is maintained during the wrapper-applying operationdescribed above. When, however,`the wrapping operation has beencompleted and the roll has advanced into the position shown at thebottom of Fig. 9, it becomes necessary-to retract thel pins 6 in orderto permit dischargef the roll ,from the machine by way of the conveyer51. Retraction of the pins 6 is effected by the springs I2, and ispermitted by the re-entrantv portions Aof -the cam II. Fig. l5, the pink6 is shown in the extreme advanced position, and it will be noted thatin this position the flange I3 of the pin is only slightly removed fromthe end, |0| of the roll R, the flange I3 and the outer end of the pinbeing embraced bythe cylindrical projecting end of the wrapperF21, whichin lthe present instance exthe spider 4. At the rear end of' each of therods |03 is a collar |04'wh'ich limits the sliding movement of the armsin one direction, and at the other end of the rods is mounted a member|05 which carries a stripper nger'l06. This finger has at -each end atransverse lug;` I 01 and |08 respectively, whichl project into path ofandat opposite sides of the flange I3 of'the associated pin 6. When thepin 6 is advanced to the position in which itis shown in Fig. 15, theflange I3, by engagement with the lug |01, draws the stripper finger |06and the rods I |13` to which it is secured into a similarly advancedposition. When. the' roll R is applied to the end of the pin 6, the lug|01 thus constitutes a stop, which 20v In fined between the flange I3and the inner end y of the roll. By reason ofthe spaced relation of thelugs |01 and |08, the pin 6'when retracted is permitted a correspondingfree movement with respect to the stripper finger, and i'n the travel ofthe ange I3 between the inner or adjacent faces of the lugs |01 and |08,no force is applied directly from the pin to the strippernger tending toreturn the latter with the supporting rods |03 toward theretractedvposition. The roll R, however, by reason of the ribs I5 on theex- `tremities of the piris 6, is more or lessfirmly wedged on the pins,this being necessary to prevent a possible :rotation of the roll withrespect to the pin, and-it is apparent, therefore, that if some meanswere not provided for temporarily holding the stripper ngerin theadvanced powhen thelatter is retracted, and to strip the roll n from thepin, the member |05 which carries'the stripper nger is provided, as bestshown in Figs. 12 and 14, with a boss |09, to which is secured forrotation a roller As the pin 6 with the roll and the now attached4wrapper moves toward the bottom of its circular path with the spider 5,and as the cam roller 9 of theA pin approaches the re-entrant portion ofthe cam the roller of the stripper mechanism moves into engagement withthe outer face of an arcuate plate ||2, which as best shown in Figs. 1,2, 12 and 14 is attached to the lower part of a circular plate II3secured to the inner extremity of the stub shaft 3. When so engaged withthe plate ||2, retractive movement ofthe stripping finger and itssupporting rods |03l is prevented, so that when las shown in Fig. 16 thepin 6 is retracted by the spring I2, the stripper finger |06 remains inposition to thereby permit withdrawal of the pin from the roll R.Immediately subsequent to'the clearing of the outer end of the pin 6from the roll, however, the flange |3 engages the lug |08 of thestripper finger, and simultaneously the roller |I| clears the end of theplate |I2, so that the spring I2 is then permitted l to continue theretractive movement of the pin 6, and with it of the stripper finger |06into the fully retracted position, as shown in Fig. 1'1.

-As the aforedescribed stripping action progresses,

the roll occupies a position directly over one of the cradles 56 of theconveyer 51, and when the stripping action is completed, the roll restsin the'. cradle 56 and is carried thereby from the machine.

The wrapper-feeding mechanism illustrated diagrammatically in Fig. 3,and hereinbefore described in general terms, will now be described indetail.` Referring to Fig. l, it `will be noted that the shaft 93 whichcarries the gear wheel-92 has at its extremity a spiral gear I|5, andthis gear, see Fig. 2, meshes with a spiral gear ||6 carried by atransverse shaft I|1 journaled in the casing. At each end. the shaft II1 carries a. cam |8 having in its inner face a cam slot (not shown)which receives a roller |I9 projecting from one side of a rod |2|, theserods depending from opposite sides of the transverse cutter bar 45 whichcarries the blade 46. The rods |2| are adjustable as to length, as bestshown in Fig. 2, and each has at its lower end a fork |22 which embracesa collar on theshaft II1, and is thereby guided in the verticalreciprocatory motion. Rotation of the shaft I I1 and of the cams I8secured thereto results, through the rollers ||9, in a verticalreciprocation of the rods |2| of the cutter bar and blade 45T-46,

Secured to the outer face of the cam ||8, on that side of the machineshown in Fig. 1, is a disk |23 which carries a slotted block |24 formingone element of an adjustable crank mechanism on the shaft I I1. Thecrank pin |25 slidably mounted in the block |24 is adjustable radiallyof the shaft axis through the medium of a screw |26 to thereby regulatethe throw of the crank. v The crank pin |25 is connected by a crank rod|21 with one end of a bell crank lever |28 mounted for oscillation onthe outer end of a stub shaft The other arm of the turn meshes with apinion |39 on one end of ay shaft |4|, which as shown in Fig. 4 extendsfrom one side of the frame to the other. The shaft |4| carries at itsopposite end a pinion |42 which l meshes with a gear |43 at one'end of ashaft |44I ljournaled in the frame, which shaft carries at its oppositeend the adhesive applicator disk 53. Adjacent each end thereof, theshaft |4I carries a sprocket |45, one of these sprockets being connectedby a chain |46 to a sprocket |41 on a shaft |48 journaled in the framewhich carries one of the two feed rolls 48. The other of the sprockets|45 is connected by a sprocket chain |49 with a. sprocket |5|, and thissprocket is secured to a'shaft |52 at the opposite side of the framefrom the shaft |48 which carries the other of the feed rollers 48. Thecompanion rolls l49,

49 of the rolls 48 are carried in each instance on an arm |52 looselysupported on a rock shaft |53 suitably journaled in the frame. To eachof the arms |52 is secured a spring |54 which normally holds the arms inthe. depressed positions, `in

which the rollers 49 are in operative relation with the rollers 48.

Secured tothe rock 'shaft |53 is a pair of offset arms |55, the outerends of which underlie the arms |52, so that when the shaft |53 isturned in one direction, as hereinafter described, the

arms |55 act to elevate the arms |52 against the` downwardly and isconnected, as shown in Figs.

1 and 5, to a lever |58 pivotally mounted on a pin |59 projecting from abracket IBI secured to the frame. The lever |58 carries at its outer enda roller |62 which bears against the face of the gear 86 in position forengagement with a pair of spaced cams |63, |63 secured to the gear face,the arrangement being such that during one rotation of the gear 86, thefree end of the lever |58 will twice be moved away from the face of thegear by action of the cams |63, thereby elevating the connecting rod|51, and through the arm |56 rocking the shaft |53 in a counterclockwisedirection, as viewed in Fig. 1. This rocking movement of the shaft,occurring twice in each full rotation of the gear 86, results in anelevation of the rollers 49, 49 as previously described from thecompanion rolls 48.

The shafts |64 and |65 of the rolls 36 and 31 are connected together bymeans of toothed gears i |66, |66. The vshaft a sprocket |61 connectedthrough a chain with a sprocket the shaft ||1. As shown in Fig..3, eachof the |65 also carries at one end l|68 4rolls 4| and 43 is supported atthe lower end of a stem |1| slidably supported in cross bars |12 on theframe, the pins having splined connections with said cross bars, asindicated at |13, which permits their vertical reciprocation butprevents the pins from turning in the supports. Each of the stems hasattached thereto a spring |14 which yforces the stem resilientlydownwardly and maintains the rollers 4| and 43 in operative relationwith the companion rollers 39 and 42.

It will be apparent from the foregoing description that while the rolls36 and 31 are contlnuously rotated, the rolls 39, 42 and 48 receive anintermittent rotation through the action of.

the ratchet wheel |33 and the associated mech- |69 secured to oneextremity of` rolls 36 and 31 and the rolls 39 and 42 is compensated bya loop formed in the strip of material drawn from the roll 28 in thespace between the rolls 36 and 39, as shown inFigs. 1 1

and 3. The intermittent movement of the web or strip is so timed withthe operation of the cutter blade 46 that the portion of the strip actedon-by the blade is held stationary during the actual cutting operations,-the subsequent operation'of the rollers 39 and 42 .being sufficient totake up the free loop in the web between the rollers 36 and 39. and,with the rolls 48, to feed the severed portion of the strip intoposition on the table 22. The intermittent elevation of the rollers 49as previously. described leaves the individual wrappers free frominterference as they are drawn downwardly by the rolls through'the tablerecess v24, and also clears the one roll 49 from possible `contact withthe wet adhesive on the wrapper. Preferably the feed roll 42 is slightlygreater in diameter than the roll 39 to insure tension in the paperstrip between these rolls when the cutter operates to sever the strip.

:It-will be noted, also, that the feed rolls 48, 49 operate at asufficiently high effective speed to advance the severed sheet onto thetable 22 during the period that the rolls 39 and 42 are moving the stripinto position for the next succeeding cut. Preferably the rolls 49 areelevated slightly in advance of the engagement of the wrapper tiallycontacted by the rolls R.

Means is ,provided for rendering .the aforedescribed feeding mechanisminoperative inthe event that one or other of the vpins-6 fails tore-Aceive a roll R at the station in which the said rolls are placed on thepins. .This device comprises a roller |15 carried by an arm |13 securedto a rock shaft [1.1, this latter shaft being immnaled on a supportingarm |13 seemed Vto the xed cam as shown in Fig.'1. "I'he- .arms |19occupy normally a position in' which the'roller |19 lies in the path ofthe/rolls R as'they move downwardly toward the table 22. and the arm |16is thereby moved from this normal position by each of the rolls as itcontacts the roller |15. This displacement of the' arm |19 by the rollsrocks the shaft |11 and elevates a rod |13, the upper 'end of which issecured to an arm |3| on the shaft |11. The lower end of the rod |19 issecured to a-iinger |32 pivotaily attached at |33 to a bracket |34secured to the frame of the machine. 'I'he linger |32, when depressed,will act upon the clutch 94 to disengage the latter after each fullrevolution, thereby the shaft 93 from the shaft 95:

and when in thel elevated position, as .showrr in Fig. 2, the finger |32permits engagement of the clutch 94, to thereby connect thewrapper-,feeding mechanism tothe source of power. As pre- .viously setforth, the .finger |32is normally in -the depressed position, but whenelevated r through the medium of the roller |19 and by engagement withsaid roller of one of .the 'rolls R. Y

the finger |32 is elevated, permitting the clutch 94 to engage. Theclutch 34 is of the ope-revothepitionoftbewller Il iwlllremaipinthenormal depressed position, whereby the clutch 94 will be temporarilydisengaged andthereby pre-L venting operation of the wrapper-feedingmechanism as that particular pin approaches and passes through theopening in the table 22. For

that pin, therefore, the feeding mechanism will fail to feed a wrappingsheet to the table 22.

subsequently discharge the rolls from the machine. The strippingmechanism is particularly well adapted for operation in connection withroll'packa'ges employing wrappers of the character herein disclosed,which in the lfonnative stage are greater in length than the axialdimension ofthe rolls, said stripping mechanism being designed tovoperatewithout interference `with the overhanging or projectingportions of the wrapper. It will be understood that subsequent to theapplication of the wrappers in the machine forming the subject vof thepresent invention, the pro- From the foregoing description, itvwill beap'y jecting ends of the wrappers are-folded down againstl the ends of.the roll to complete the package, a machine adapted for this operationbeing disclosed in my copending application Serial Number 70,866. Therotary wrapper-applying elements which have been designated genj erally.in the foregoing description by the reference' numeral 95 1 highlyefllcient in the function for which ey are intended and maintain .theiroperating emciency overextended periods of. use.

It will-'be apparent 'that the .machine and its v various. individualmechanisms are subject to' modiiica-tion in detail without departurefrom the invention. .y f ".I

1. vIn a machine for applying wrappers to cylindrical rolls, thecombination with .a rotary y conveyer forV said rollfgofmeans located inthe rotary path of said roll on the conveyer for initially engaging thewrapper with the roll and comprising elements operative to turn theoppo` tsite end portions of the wrapper partially around lthe roll, apair of members rotating on fixed axes in synchronism with the movementof the conveyer and with each other and arranged respectively atopposite sides of said path, and an arm movable with each of saidmembers adapted `respectively to engage the free ends of said wrapper asthey respectively leave said elements land y to lay said ends againstthe roll in overlapping relation, said arms being resiliently connectedwith the respective members and being movable with thereto in the planesof ltheir rotation to thereby permit the outer ends of the arms to movein conformity with the contour of the roll.

2, In a'machine for applying dry wrappers to cylindrlcairroils, thevcombination with a conveyer for said roll. of means located in the pathof said roll for initiallyv engaging the wrapper with the'roll andcomprising elements operative t 1 turn the opposite end portions of thewrapper partially around the roll, a pair-of rotating members actuatedin synchron'ism with the movement of the conveyer and with t each otherand ar. ranged at opposite sides of said path,

anarm movablewitheachofsaidmembersj' overlapping relation, andV meansAfor resilicntly retainingsaidarmsinapsedeterminednormal pedana with M tonid re-'i partially around the roll, a pair of rotating members actuatedin synchronism with the movement of the conveyer and with each other andarranged respectively at opposite sides of said path, an arm movablewith each of said members and adapted respectively to engage the freeends of said wrapper as they respectively leave said elements to laysaid ends against the roll in overlapping relation, a lost motionconnection between said members and the respective arms, said connectioncomprising a stop element on said member adapted for engagement withsaid arm to limit the movement of the arm with respect to said member inthe direction of rotation, and a spring resiliently retaining said armin engagement with the stop, said spring permitting limited movement ofsaid arm while in engagement with said roll away from said stop in adirection reverse to the direction of rotation of said member.

4. In a machine for applying dry wrappers to cylindrical rolls, thecombination with a conveyer for said roll, of a table located in a planeintersecting the path ofsaid roll with the conveyer, said table havingan opening for passage of the roll therethrough, whereby as the rollpasses through the opening a wrapping sheet previously placed upon saidtable over said opening is initially engaged with the roll, a pair ofrotary members located below the table at opposite sides of said pathand adapted for rotation in opposite directions and in synchronism withthe movement of said conveyer, an arm mounted on each of said members,each of said arms having at its outer end a roller, and said rollersbeing adapted to engage the respective ends of the wrapper as it leavessaid table and to lay said ends against the roll in overlappingrelation, and means for resiliently connecting said arms with therespective rotary members to provide for movement of said arms withrespect to said members in the planes of their rotation to therebypermit the outer ends of the arms and said rollers to move inVconformity vwiththe contour'of the roll.

5. In a machine for applying wrappers to cylindrical rolls, thecombination with a conveyer for said roll, of a table located in a planeintersecting the path of travel of said roll with the conveyer, saidtable having an opening through Whichsaid roll is adapted to pass,whereby as the roll passes through said opening a wrapping sheetpreviously placed upon said table over said opening is drawn downwardlythrough said opening, means at the under side of said table'forcompleting the wrapping operation, said feedingmeans comprising a feedroll located below the table and engageable with the wrapping sheetthrough an aperture in the latter, a companion roll above the table forengaging the upper surface of said sheet, and mechanism operated insynchronism with the movement of the conveyer for elevating the saidupper roller as the said wrapping sheets are drawn downwardly'throughthe table opening.

- feeding mechanism comprising a feed roll located below thetable andadapted for engagement with the wrapper sheet through an aperture in thetable, -a companion roll located above the table and engageable with theupper surface .of said sheet, mechanism operating in timed relation withthe movement of said conveyer for elevating the said upper feed roll asthe said wrapper sheets are drawn downwardly through said opening, andmechanism located below the table and adjacent the path of travel of theroll for laying the ends of the said wrapper against the roll inoverlapping relation.

'7. In a machine for wrapping hollow cylindrical rolls, the combinationwith a conveyer comprising a pin adapted to enter the interior of theroll to support the latter on the conveyer, of mechanism operating insynchronism with said conveyer for applying a wrapper to said roll, andmechanism for stripping the wrapped roll from the pin, said strippingmechanism comprising means for longitudinally retracting the pin fromthe normal ing a pin adapted to enter the interior of the roll tosupport the latter on the conveyer, of mechanism operating insynchronism with said conveyer for applying a wrapper to said roll, and

mechanism for stripping the wrapped roll from y the pin, said strippingmechanism comprising means for longitudinally retracting the pin fromthe normal operative position, an element engageable with the end of theroll and movable by and with the pin into the'advanced or normallyoperative and the retracted positions, a lost-motion connection betweenthe pin and said element permitting an initial limited retractivemovement of the former independently of the latter, vmeans for retainingsaid element in the advanced position during said initial retractivemovement of the pin, and means for rendering'said retaining meansinoperative at the termination of -said initial retractive movement topermit movement of both the pin and the element into the fully retractedpositions. i

9. In a machine for wrapping hollow cylindrical rolls, the combinationwith a conveyer comprising a pin adapted to enter the roll to supportthe latter, of means operating in synchronism withthe movement of theconveyer to longitudinally advance and retract thefpin, and means forstripping the roll from the pin in said retractive movement, saidstripping means comprising an elein the advanced position during aninitial retractive movement of the pin, and means operative aftertermination of said initial retractive mover f ment to move said elementwith the pin to the fully retracted positions.

10. In a machine for wrapping hollow cylindrical rolls, the combinationwith a conveyer comprising va pin adapted to enter the interior of theroll and to support the latter on the conveyer, of mechanism operatingin synchronism with said conveyer for applying to said roll a wrapper ofgreaterlength than the axial dimension of the roll, said wrapper therebyprojecting beyond the roll end, and mechanism for stripping the wrappedroll from the pin, said mechanism comprising an element engageablevwiththe end of the roll inside the projecting wrapper end, and means forreciprocating said element in the direction of the roll axis. p

11. In a machine for wrapping hollow cylindrical rolls,v the combinationwith a conveyer comprising a pin adapted to enter the interior oi.'

the`roll to support the latter on the conveyer, of mechanism operatingin synchronism with said conveyer for applying a wrapper to said roll,means for periodically retracting the pin in the conveyer from a normaloperative position, and means for retaining the roll in the advancedposition during the retractive movement of the pin whereby the roll isstripped from the latter,

said means comprising a stripping finger mounted on saidconveyeradjacent the pin for reciprocatory -movement longitudinally ofthe latter, a flange on said pin, spaced elements on said ngerprojecting into the path of said ange and at opposite sides thereoflwhereby the longitudinal movements of said pin may effect longitudinalmovements of the finger in the same direction,v and means for retainingthe nger in the advanced position during the initial retractive movementof the pin and' while said flange is moving `in the space between saidnger elements.

PHILIP D. PARSONS.

